Adjustable cultivator.



W. W. CAIN.

ADJUSTABLECULTIVATOR. APPLICATION- FILED MAY 2, I914.

Patented July 17, 1917. v

2 SHEETS-SHEET I.

mkawm.

w. W. cm.

ADJUSTABLE CULTIVATORH APPLICATION FILED MAY 2, 1314 2 SHEETS-SHELL.

a na /$01 WRIGHT w. vcej nt, or KOSCIUSKO, mrssrssrrrr.

' ana'us'rantn CULTIVATOR.

To all whom it may concern."

Be it known that I, =VVRIGHT W. CAIN, a citizen of the United States, and a resident of Kosciusko, in the county of Attala and State of Mississippi, have inventedcertain new and'useful Improvements inAdjustable Cultivators, of which the. following is a specification, reference'being had to the ac My invention has for its object to improve the construction and operation of Walking cultivatorsto the end that a cultivator may be provided having oppositely extending cultivator carrying frames which can be adjusted backward and forward as well as up and-down.

'Another object is to provide a cultivator including oppositely positioned pivotally means to regulate the depth the cultivator teeth enter the'soil.

held cultivator carrying frames'which can be so set as to convert the cultivator into I a harrow. A still furtherobject is to pro-,

vide a cultivator with a simplyconstructed With these and other objects in view, the present inventionconsists in the combination and arrangement of-parts as will be hereinafter more fully described and finally vpointed out in the appended claim, it being further understood that changes in the specific structure'shown and described may be made within the scope of the claim,

7' without departing from the spirit of the in vention. i

In the accompanying drawmgs forming a part of this specification, and in which numerals of reference indicate similar parts in the several views: Figure 1 shows aside elevational a cultivator embodying my invention. I Fig. 2, is a bottom View of Fig. 1.

Fig. 3, is a perspective detail of one of the cultivator carrying frames detached away. I

Fig. 4;, shows an enlarged perspective detail of the supporting standard showing broken portions of the notched supporting bars in position.

Fig. 5, shows a rear end view disclosing the cultivator carrying. frames adjusted in a downwardly extending position.

In my present invention I provide a simply constructed readily adjustable im-' plementforbreaking-up the surface of the Specification or Lettrslatent, m ma ypg Application filed May 2,1914. Serial No.835,909.. i

bars 17 and 18,19 and 20, these bars view of head F, and to. the rear of said head with a foraininous plate 0, the. for'ainina t, of which are adapted to be engaged by the hook end of a brace-bar R,--two said brace bars being used for a purpose to be described hereinafter.-

Secured near the opposite end are the studs 8 and '9, shown in Figs. 1 and'2, each. of which gives pivotal support totwohinge- 'plates 15 and 16 and 15" and f16,*,rspec- 'tively, these plates being-shown] i. "F gs and one set in detail in Fig. 3.

Hingedly secured to these hinge-plates 15, 15 and 16, 16, are the cultivator-carryingbeing arranged in sets of two in parallelspaced '75 relation. At the outer endsfas shown in" Fig. 3, these bars are connected} by means a of a coupling rod 24', having anintermediate loop a, the ends of the rods 24,'being secured to suitable eye bolts 3. The loops 2, of the coupling rods 24, are adapted to receive the ends 2, of'the notched Supportin bars .25. v.

As shown in the drawings the forward cultivator bars andlt), have the openings '8, arranged to receive the l oop/end of the brace bars R, insuring these cultivator carrying bars being held in adjusted position ;relative to the carrying beam'lO.

Each forward cultivator bar 17 and 1 9, is-provided with a plurality of studs 5, which are arranged to .pivotally receive the forward ends A, of the cultivator teeth 'u and 0, arranged in parallel spaced relation having the curve ends B.

As shown in Fig. 2, the bar 17, gives pivotal support to threesuch cultivator teeth u, while the bar- 19, also gives pivotal support to three suchfcultivator teeth a, and that, positioned between the inner end teeth is a stationary "tooth :0, held in'position by means of the studs .8 and 9, asshown in- Fig. 2. This intermediatelypositioned cultivator tooth is 'removably held to the studs times to the fender D,.having a drag bar E, which is arranged to be secured tothe forward stud. 8, as shown in dotted outline in Fig. 1.

Secured to 8 and 9, and is arranged to give place at 5 the rear cultivator bars 18 and no Tprevented by means of the brace bars R, while up and down or'vertical displacement 20, are a plurality pivot bolts 6, each bolt Flg. 3.

porting shoulders 2i, the ends 23, being provided with the openings WV, arranged to slidably receive the stems A, of the cultivatorteeth. Each yoke is provided with an opening, to receive oneof the pivot bolts 6.

; Referring to the drawing it will be no- 1 ticed that the yokes 22, hold the stems A, to

the underface of the cultivator bars '18 and 20.

From the foregoing it will be understood 1 that I provide a cultivator including "an intermediately positioned stationary cultivator tooth and a plurality of adjacent parallel held cultivator teeth which can be adjusted backward and forward-owing to the pivotal connection of hinge-plates and vertically.

, .fowing to their hinge connection to the hingeplates. i Forward or backward displacement 11s "is prevented through the interme iium of the notched coupling rods 25, which have their notched ends pass'through a suitable open-' ing formed-within a supportingstandard c comprising two members 31 and 33, which have their lower angular endssecured to the main carrying beam 10, by means of a su1t-- able-bolt 32. p 5 The upper endo'fthe bar 33, is secured to N the bar 3l,b y means ofjthe stud 2, the exv formiofy, a; detent m,

escape ofthef-notched adjusting bar 80, havtrem'einpperfj end of the bar 33, being in the this; end being capable of; beingsprung; out to permit the ing notches y, 'arranged to receive'thestud 'i1 1adjusting this bari;

. I As" showni'inj Fig. 4,-the notches-y, of the i "(bars 25, are adapted to engage the members 51' and x33, and are "removably held within] tlie '-openingsl. thereof, by meansfof a detent V and -'jsh-ding upori'the pin, this detent having .ithe finger pieceoroperating end 7, as'clearly so" v I ;2jIn:fdra-w-1ng the members 25, backward orward the cultivator supporting mem 'bersarel raisedjandflowered.c

- the ground a In order to balance the cultivator and regulate' thedepth the cultivator teeth enter I provide the'forked frame 27 to the end Eofiwhich are secured thewheels 28, this-forkedframe being held upon a bolt 26," clearly' shown'inf Fig, upper new stem 3', of this forked frame by means of a stud 29, is ecured one end of the notched adjusting bar 30, having the handle [7. In

adjusting the handle 30, backward and forward the carrying beam 10, is raised and lowered.

As shown in the drawings the cultivator is provided with twoguide handles 12, which have their lower ends secured'by means of a .bolt 11, to the main carrying beam 10, these handles 12, being braced by means of the supporting bars 13, and the brace bar 14-.

The cultivator is simple and inexpensive in construction and both durable and efiic'ient in operation, and the adjustment of the beam as well as the adjustment of the cultivator teeth may be effected with ease, accuracy, and despatch.

Having thus described my said invention what I claim as new and desire to secure by United States Letters Patent is:

The combination in a cultivator of the character described, of a main carrying beam, four hinge plates pivotally secured to said beam in sets of t'wos, a cultivator bar hingedly securedto each hinge plate, a coupling rod secured to said cultivator bars at their outer ends each coupling rod having an intermediate loop, a notched supporting bar secured to each of said loops, a supporting standard secured to said beam at a point between said hinge pla'tes, said notch supporting bars being arranged to be adj ustably engaged with said supporting standard whereby said cultivator "bars may be raised and lowered, cultivator teeth secured to said ,cultivator bars, a foraminous plate secured to saidbeam, a brace rod extending from one set of said cultivator bars to said foraminous plate whereby said cultivator bars are held in adjusted position, a forked frame pivotally secured to said beam, two wheels secured to the lower end of said forked frame, a notched adjusting rod having its forward end secured to the upper end of said forked frame, a stud secured to said sup- 'portmg standard arranged to engage within the notches of said last mentioned adjusting rod for tilting said forked frame backward and forward whereby said cultivator is balanced and the depth of the cultivator teeth are regulated.

"In testimony whereof I aflix my signature,

in the presence of two witnesses.

VVRIGIIT \V. MUN.

Witnesses:

J. CAIN,

E. Y. Fos'rnn. 

